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Finding the Fourth Proportional to 65,653.52, 90,612.28 and 37,368.32

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Solution

The fourth proportional to 65,653.52, 90,612.28 and 37,368.32 is: 51,574.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,653.52 : 90,612.28 = 37,368.32 : x
  2. Step 2: Convert to fraction form
    65,653.52/90,612.28 = 37,368.32/x
  3. Step 3: Cross multiply
    65,653.52x = 90,612.28 × 37,368.32
  4. Step 4: Simplify right side
    65,653.52x = 3,386,028,674.97
  5. Step 5: Solve for x
    x = 3,386,028,674.97/65,653.52
  6. Step 6: Final answer
    x = 51,574.21

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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.