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Finding the Fourth Proportional to 64,844.04, 89,496.18 and 61,889.16

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Solution

The fourth proportional to 64,844.04, 89,496.18 and 61,889.16 is: 85,417.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,844.04 : 89,496.18 = 61,889.16 : x
  2. Step 2: Convert to fraction form
    64,844.04/89,496.18 = 61,889.16/x
  3. Step 3: Cross multiply
    64,844.04x = 89,496.18 × 61,889.16
  4. Step 4: Simplify right side
    64,844.04x = 5,538,843,403.41
  5. Step 5: Solve for x
    x = 5,538,843,403.41/64,844.04
  6. Step 6: Final answer
    x = 85,417.93

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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.