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Finding the Fourth Proportional to 57,810.30, 86,715.45 and 44,688.30

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Solution

The fourth proportional to 57,810.30, 86,715.45 and 44,688.30 is: 67,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,810.30 : 86,715.45 = 44,688.30 : x
  2. Step 2: Convert to fraction form
    57,810.30/86,715.45 = 44,688.30/x
  3. Step 3: Cross multiply
    57,810.30x = 86,715.45 × 44,688.30
  4. Step 4: Simplify right side
    57,810.30x = 3,875,166,044.24
  5. Step 5: Solve for x
    x = 3,875,166,044.24/57,810.30
  6. Step 6: Final answer
    x = 67,032.45

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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.