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Finding the Fourth Proportional to 52,655.50, 72,664.59 and 30,312.46

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Solution

The fourth proportional to 52,655.50, 72,664.59 and 30,312.46 is: 41,831.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,655.50 : 72,664.59 = 30,312.46 : x
  2. Step 2: Convert to fraction form
    52,655.50/72,664.59 = 30,312.46/x
  3. Step 3: Cross multiply
    52,655.50x = 72,664.59 × 30,312.46
  4. Step 4: Simplify right side
    52,655.50x = 2,202,642,477.79
  5. Step 5: Solve for x
    x = 2,202,642,477.79/52,655.50
  6. Step 6: Final answer
    x = 41,831.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.