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Finding the Fourth Proportional to 52,463.80, 78,695.70 and 42,095.80

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Solution

The fourth proportional to 52,463.80, 78,695.70 and 42,095.80 is: 63,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,463.80 : 78,695.70 = 42,095.80 : x
  2. Step 2: Convert to fraction form
    52,463.80/78,695.70 = 42,095.80/x
  3. Step 3: Cross multiply
    52,463.80x = 78,695.70 × 42,095.80
  4. Step 4: Simplify right side
    52,463.80x = 3,312,758,448.06
  5. Step 5: Solve for x
    x = 3,312,758,448.06/52,463.80
  6. Step 6: Final answer
    x = 63,143.70

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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.