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Finding the Fourth Proportional to 63,730,813.80, 95,596,220.70 and 20,630,948.70

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Solution

The fourth proportional to 63,730,813.80, 95,596,220.70 and 20,630,948.70 is: 30,946,423.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,730,813.80 : 95,596,220.70 = 20,630,948.70 : x
  2. Step 2: Convert to fraction form
    63,730,813.80/95,596,220.70 = 20,630,948.70/x
  3. Step 3: Cross multiply
    63,730,813.80x = 95,596,220.70 × 20,630,948.70
  4. Step 4: Simplify right side
    63,730,813.80x = 1,972,240,725,175,578
  5. Step 5: Solve for x
    x = 1,972,240,725,175,578/63,730,813.80
  6. Step 6: Final answer
    x = 30,946,423.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.