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Finding the Fourth Proportional to 47,728.90, 65,864.06 and 26,509.53

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Solution

The fourth proportional to 47,728.90, 65,864.06 and 26,509.53 is: 36,582.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,728.90 : 65,864.06 = 26,509.53 : x
  2. Step 2: Convert to fraction form
    47,728.90/65,864.06 = 26,509.53/x
  3. Step 3: Cross multiply
    47,728.90x = 65,864.06 × 26,509.53
  4. Step 4: Simplify right side
    47,728.90x = 1,746,025,274.49
  5. Step 5: Solve for x
    x = 1,746,025,274.49/47,728.90
  6. Step 6: Final answer
    x = 36,582.14

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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.