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Finding the Fourth Proportional to 52,390.01, 78,585.08 and 12,946.52

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Solution

The fourth proportional to 52,390.01, 78,585.08 and 12,946.52 is: 19,419.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,390.01 : 78,585.08 = 12,946.52 : x
  2. Step 2: Convert to fraction form
    52,390.01/78,585.08 = 12,946.52/x
  3. Step 3: Cross multiply
    52,390.01x = 78,585.08 × 12,946.52
  4. Step 4: Simplify right side
    52,390.01x = 1,017,402,852.26
  5. Step 5: Solve for x
    x = 1,017,402,852.26/52,390.01
  6. Step 6: Final answer
    x = 19,419.79

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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.