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Finding the Fourth Proportional to 64,813.32, 89,442.39 and 35,005.32

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Solution

The fourth proportional to 64,813.32, 89,442.39 and 35,005.32 is: 48,307.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,813.32 : 89,442.39 = 35,005.32 : x
  2. Step 2: Convert to fraction form
    64,813.32/89,442.39 = 35,005.32/x
  3. Step 3: Cross multiply
    64,813.32x = 89,442.39 × 35,005.32
  4. Step 4: Simplify right side
    64,813.32x = 3,130,959,483.51
  5. Step 5: Solve for x
    x = 3,130,959,483.51/64,813.32
  6. Step 6: Final answer
    x = 48,307.35

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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.