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Finding the Fourth Proportional to 70,483.53, 97,210.80 and 61,967.64

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Solution

The fourth proportional to 70,483.53, 97,210.80 and 61,967.64 is: 85,465.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,483.53 : 97,210.80 = 61,967.64 : x
  2. Step 2: Convert to fraction form
    70,483.53/97,210.80 = 61,967.64/x
  3. Step 3: Cross multiply
    70,483.53x = 97,210.80 × 61,967.64
  4. Step 4: Simplify right side
    70,483.53x = 6,023,923,858.51
  5. Step 5: Solve for x
    x = 6,023,923,858.51/70,483.53
  6. Step 6: Final answer
    x = 85,465.69

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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.